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The DU145 Automatic Bypass Valve is suitable for all heatingsystems up to 6Bar static pressure where a boiler bypass isrequired or radiator thermostats are fitted.The DU145 provides a simple method of ensuring adequate flowthrough boilers which require a bypass as well as reducingsystem noise.
In systems fitted with radiator thermostats the DU145Automatic Bypass Valve opens automatically as the TRVs orzone valves close down and the resistance of the system startsto exceed the preset pressure limit.
Automatic Bypass Valves are particularly beneficial in improvingefficiency by bypassing the system when necessary and alsoimproving control of the system fitted with TRVs by ensuring aconstant differential pressure across the radiator.